reversal of a spectral line

例句：

1. 1. The scientist discovered a new method for reversing the aging process.
   科学家发现了一种新的方法来逆转老化过程。
2. 2.During the experiment, the team made a reversal of their initial hypothesis.
   在实验中，团队对最初的假设进行了修正。
3. 3.The company's decision to reverse its policy on environmental protection was met with criticism.
   该公司决定逆转其环保政策的决定受到了批评。